Electric clock.



H. H. ENGELBERG & G. WAGNER.

ELECTRIC CLOCK.

APPLICATION FILED JUNE 21, 1905.

Patented Feb. 9, 1909.

4 SHEETS-SHEET l.

H. H. ENGELBERG & 0. WAGNER. ELECTRIC CLOCK.

APPLICATION FILED JUNE 21, 1905. 912,235, I Patented Feb. 9, 1909.

4 SHEETSBHEET 3.

H. H. BNGELBERG & O. WAGNER.

ELECTRIC CLOCK.

APPLICATION FILED JUNE 21.1905. 912,235 Patented Feb. 9, 1909 4 SHEETS-SHEET 4v Uwmniots HERMANN n. ENGELBER Ann CLEANER WAGNER, or nANviLLn Pen-Nsmvlilvni.

QELECTRIIG cnoox.

Specification of ietters Patent. Applicationv filed. M11221; 1905. Serial 110.266.3662

Patented Feb. 9, 1908.

To (ZZZ whom it may concern: v

Be it known that we, HERMANN H. Enemnneo and CLEAVER WAGNER, citizens of the United States, residing at Danville-, i-n the county of Montour and State of Pennsylvania, have invented a new and useful Irnprovement in Electric Clocks,- of. .lllOll the following is a specification. 7

This invention relates to an electrical erated clock in which the making andbrea {4 ing of an electrical circuit automatically )laces a coil-s ring undertension and it will be obvious t erefore, that as long as the mechanism is in working order and theelectricalcircuit is complete, that is connected to the proper source of will not run down. r

The object of the invention is a clock mechanism in which an armature is drawn to-the poles of an electro-magnet by the energizing of said magnet and withdrawn by the action of a spring upon the automatic breaking of the electrical circuit, in which the magnet is placed.

Afurther object of the invention is to provide means bywhich this movement of the armature is converted into a'rotary move ment in the arbor carrying the. great wheel of the-clock mechanism.

In therlrawing's forming a part of this s eciiication:Figure 1 is aside elevation of t e frame, and mechanism attached thereto, the dial hands and casing all being-removed. Fig. 2 is a plan view of Fig. 1. I Fig. 3 is a vertical section taken transversely through the pillars and arbors. Fig. 4 is an end view. Figs 5 and6 are detail viewsof s ring contact plates removed from the cloc Fig. 7 is an enlarged detail view showing the circuit making and breaking mechanism, parts being broken away and parts in section. Fig. 8 is a detail side elevati'on of the contact strips and cooperating parts, portions of. the strips'being brokenout. Fig. 9 is a detail view of the circuit making and breaking mechanism omitting parts shown in Fig. 7 the circuit being closed. Fig. 10 is a similar view, the circuit being open. Fig. 1-1 is a detail of the winding spring and connected parts. Fig 12 is a diagram ofthe circuits.

In these drawings A represents a segmental base provided at each end with vertical standards A suitably perforated and countersunk so that they can be secured by means of screws within a casing. Intermediate the ends of the base and arranged upon opposite power, that the clock sides of the same, are two vertical plates A which are connected by pillars A A and A In the plates A are journaled arbors B, C, D and E.

Upon the arbor B is fixed a ratchet wheel B", and upon the arbor C is fixed the third wheel C and a pinion C which pinion is driven from the arbor B, by the great wheel M. The arbor D carries the scape wheel D and "a pinion D "meshing with the third wheel C. A verge E is carried by the arbor E, and is controlled by the usual regulating lever E Upon the base A is mounted an electro-magnet F, and. an armature plate G is mounted upon a pivot pin G journale'd in parallel lugs A" projecting; from the plates A curved arni H -extends rearwardly or inwardly from the armature plate and as the plate is drawn downwardly into contact with the poles of the magnet, .the curved arm H is lifted vertically and actuates a rocking lever J, which carries at its forward end an anti-friction roller J which is en gaged by and travels upon the arm H. The lever J is pivotally mounted and rocks upon the arbor B and at the end opposite the roller J, carries a in J adapted to engage a projection or tooti K formed on a spring contact late K and in operation the pin J descri es an arc in the path of which the said tooth lies and alternately presses the contact plate K into engagement with a spring contact plate K as it passes over the, outer face of the tooth K and as it passes over the-inner-face of the said tooth and passes between the tooth K and an insulatingstri K carried by the spring'contact plate K lifts the two contacts apart, thus breaking the circuit and deenergizing the electro-magnet F.

The spring contact plates K and K are bifurcated at their lower ends and are held by suitable screw K to one of the lower pillars A and to the pillar A, respectively. The lever J carries upon one side the pin J and a coil spring J is secured at its lower end to a pillar A and at its up or end to the said pin and bydrawing tlie ro ler end of the lever J downward, causes the said roller to the ratchet wheel B and drives the said wheel as the roller end of the lever J is,

drawndownwardly by the spring J slipping on the ratchet teeth as the arm moves'upwardly.

A spring pawl B is connected. at its lower end to the illar A and prevents reverse-rotation of t e wheel B An insulated plate L is carried by. one of the plates A and at right angles to said late and is provided with a contact strip E I a binding post L carried by the strip L, to the plate A A similar binding post .L is arranged adj acent the opposite end of the strip L, and is connected by an electrical conductor L to the magnet F which is also connected by a wire L to a binding post Liarrangd'on the plate A Upon the arborB and between the ratchet,

, wheel B, andthegreat wheel M, is arranged a coil spring B one end of the said -sprin being connected to the ratchet wheel B, an

the other end to the great wheel M The ob- I ject of this spring is to prevent the hands jumping when the armature is drawn downward and the coil sprin J is placed under with any desired source of electrical energy tension. The arbor B a so carries the usual cannon pinion M, the wheel M and a pinion M j c o Upon a stub shaft N, is mounted a wheel O,-meshing with the pinion M and carrying a pinion O meshing with the wheel M These last mentioned arts constitute a portion of the usual cloc train, The binding posts L and L are connected ina circuit as a battery 1 by the conductor L and the pillar A which carries at one end the binding post L is carefully insulated from the plate A pillar A to'which thespring contact plate K is connected, the spring contact plate K, the

which extends from The electrical circuit to the magnet F is through the binding post L the strip'L connected to the said post, the plateA", the

post L the wire L the electro-magnet, the wire L", the other binding post L", and thence to the exterior circuit.

cWe employ a suitable battery as a source of energy the exterior circuit being completed through battery wires L 'It will be noted that the contact spring K is slotted as shown at K at its lower end and is recessed on one side as shown at KK A screw K is threaded into a pillar A adj acent the spring strip K and carries a disk K which disk engages the. recess K. The object of this isto adjust the contact strip K when first laced in position, as the strip willbe raised or lowered by turning the screw K to right or left; When the proper adjustment means of the'screw K4.

Having thus fully described ourinvention, what we claims as new and desire to secure by Letters Patent, is a r a I 1. In an electrically wound clock, a magnet, an armature, an arm carried by the armature, a rocking lever engaged by said arm, a pin carried by theleventwo spring contact plates, and a tooth formed on one spring contact plate and engaged by the pin, said pin alternately separating and pressing together lghe flontact plates, as and for the purpose set ort r 1- I 2. Inan electric clock, acircuit-making and breaking device comprising as ring;contact plate havingla tooth, a second spring contact plate aving an insulated portion, a rocking lever, a pin carried by the lever alternately passing over the outer and inner faces of the tooth and engaging the insulated portion of the other contact, plate when in engagement with the inner face of the tooth and means for automatically rocking said lever.

HERMANN H. ENGELBERG. CLEAVER WAGNER.

Witnesses z. 7 v CHRISMAN, A FRDK. HASEMANN is'secured the strip is clamped in position'by 

